Inbound Links are the single most important factor  for Google to determine a website´s rank in the search engine results. In fact, a SEO professional that does not undertake actions to obtain links to a site is not even doing SEO.

 Since Google introduced its PR (page rank) based search engine, the way it evaluates links changed substantially. Whilst at first “link popularity” (amount of links pointing to a site) was key, today a number of different factors decide how much weight a link carries. The sheer number of links is secondary. Its quality over quantity.

 In the following I will list the 10 most important factors.